Question

1. why is it important to tie a sample statistic like the mean back to the population?

a. to avoid using random sampling.
b. to make accurate inferences about the entire group.
c. to ensure variability is eliminated.
d. to focus only on extreme values.

Explanation:

The goal of using sample statistics is to draw conclusions about the entire population. Tying the sample statistic (like the mean) to the population helps in making accurate inferences about the characteristics of the whole group. Random sampling is a valid and often - used method, variability cannot be completely eliminated, and focusing only on extreme values is not the purpose of using sample statistics related to the population.

Answer:

B. To make accurate inferences about the entire group.